Sazykinaite-(Y) Mineral Data

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General Sazykinaite-(Y) Information

Chemical Formula:

Na5YZrSi6018•6(H2O)

Composition:

Molecular Weight = 859.67 gm

Sodium 13.37 % Na 18.02 % Na₂O

Yttrium 10.34 % Y 13.13 % Y₂O₃

Zirconium 10.61 % Zr 14.33 % ZrO₂

Silicon 19.60 % Si 41.94 % SiO₂

Hydrogen 1.41 % H 12.57 % H₂O

Oxygen 44.67 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₅YZrSi₆O₁₈•6(H₂O)

Environment:

In hyperagpaitic pegmatites.

IMA Status:

Approved IMA 1993

Locality:

Mt. Koashva, SE part of the Khibina alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named after Ludmila B. Sazykina (1934- ), a Kola artist.

Name Pronunciation:

Sazykinaite-(Y) + Pronunciation

Synonym:

IMA1992-031

Sazykinaite-(Y) Image

Images:

Sazykinaite-(Y)

Comments: Light brown crystals of sazykinaite-(Y).
Location: Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Sazykinaite-(Y) Crystallography

Axial Ratios:

a:c = 1:1.46041

Cell Dimensions:

a = 10.825, c = 15.809, Z = 3; V = 1,604.32 Den(Calc)= 2.67

Crystal System:

Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: R 32

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.03(1), 3.127(0.88), 3.236(0.84),

Crystal Structure:

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Rastsvetaeva R K , Khomyakov A P , Kristallografiya , 37 (1992) p.1561-1563, Crystal structure of a rare earth analog of hilairite

Physical Properties of Sazykinaite-(Y)

Cleavage:

{012} Imperfect

Color:

Light green, Yellow.

Density:

2.67 - 2.71, Average = 2.69

Diaphaneity:

Transparent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Hardness:

5 - Apatite

Luminescence:

Fluorescent, Short UV=bright green.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Sazykinaite-(Y)

Dichroism (e):

colorless.

Dichroism (w):

colorless.

Gladstone-Dale:

CI meas= 0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2178,KPDmeas= 0.2162,KC= 0.2168
Ncalc = 1.58 - 1.59

Optical Data:

Uniaxial (-), e=1.578, w=1.585, bire=0.0070.

Calculated Properties of Sazykinaite-(Y)

Electron Density:

Bulk Density (Electron Density)=2.64 gm/cc
note: Specific Gravity of Sazykinaite-(Y) =2.69 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_{Sazykinaite-(Y)}= 27.27 barns/electron
U=PE_{Sazykinaite-(Y)} x rElectron Density= 72.01 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sazykinaite-(Y) is Not Radioactive

Sazykinaite-(Y) Classification

Dana Class:

59.02.03.03 (59)Cyclosilicate Three-Membered Rings

(59.02)hydrated

(59.02.03)Hilairite group

59.02.03.01 Hilairite Na2ZrSi3O9•3(H2O) R 3m 3 2/m

59.02.03.02 Calciohilairite CaZrSi3O9•3(H2O) R 32 3 2

59.02.03.03 Sazykinaite-(Y) Na5YZrSi6018•6(H2O) R 32 3 2

59.02.03.04 Pyatenkoite-(Y)! Na5(Y,Dy,Gd)TiSi6O18•6(H2O) R 32 3 2

Strunz Class:

09.DM.10 09 - SILICATES (Germanates)

09.D - Inosilicates* Structural terminology according to Liebau (1985)

09.DM -Inosilicates with 6-periodic single chains

09.DM.10 Calciohilairite CaZrSi3O9•3(H2O) R 32 3 2

09.DM.10 Hilairite Na2ZrSi3O9•3(H2O) R 3m 3 2/m

09.DM.10 Komkovite BaZrSi3O9•3(H2O) R 32 3 2

09.DM.10 Pyatenkoite-(Y)! Na5(Y,Dy,Gd)TiSi6O18•6(H2O) R 32 3 2

09.DM.10 Sazykinaite-(Y) Na5YZrSi6018•6(H2O) R 32 3 2

Other Sazykinaite-(Y) Information

References:

NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.80,p631,1995) OPTIC PROP.(MinRec)

See Also:

Links to other databases for Sazykinaite-(Y) :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
14 - WWW-MINCRYST

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Sazykinaite-(Y)

Na5YZrSi6018•6(H2O)
Dana No: 59.02.03.03 Strunz No: 09.DM.10
Locality:

Notes: